package com.atguigu.tingshu.account.service.impl;

import com.atguigu.tingshu.account.mapper.UserAccountDetailMapper;
import com.atguigu.tingshu.account.mapper.UserAccountMapper;
import com.atguigu.tingshu.account.service.UserAccountService;
import com.atguigu.tingshu.common.constant.SystemConstant;
import com.atguigu.tingshu.common.execption.GuiguException;
import com.atguigu.tingshu.common.result.ResultCodeEnum;
import com.atguigu.tingshu.model.account.UserAccount;
import com.atguigu.tingshu.model.account.UserAccountDetail;
import com.atguigu.tingshu.vo.account.AccountDeductVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;

@Slf4j
@Service
@SuppressWarnings({"all"})
public class UserAccountServiceImpl extends ServiceImpl<UserAccountMapper, UserAccount> implements UserAccountService {

    @Autowired
    private UserAccountMapper userAccountMapper;

    @Autowired
    private UserAccountDetailMapper userAccountDetailMapper;

    @Override
    public void userRegister(Long userId) {
        // 创建一个账户对象
        UserAccount userAccount = new UserAccount();
        //赋值
        userAccount.setUserId(userId);
        userAccount.setTotalAmount(new BigDecimal("100.00"));
        userAccount.setAvailableAmount(new BigDecimal("100.00"));
        userAccountMapper.insert(userAccount);
    }

    @Override
    public BigDecimal getAvailableAmount(Long userId) {

        return userAccountMapper.selectOne(new LambdaQueryWrapper<UserAccount>().eq(UserAccount::getUserId, userId)).getAvailableAmount();
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void checkAndDeduct(AccountDeductVo accountDeductVo) {
        //调用服务层方法
        int result = userAccountMapper.checkAndDeduct(accountDeductVo.getUserId(), accountDeductVo.getAmount());
        if (result == 0) {
            log.error("账户余额不足");
            throw new GuiguException(ResultCodeEnum.ACCOUNT_LESS);
        }
        //将用户的资金流向记录表中 user_account_detail
        this.addUserAccountDetail(accountDeductVo.getUserId(), accountDeductVo.getContent(), SystemConstant.ACCOUNT_TRADE_TYPE_MINUS, accountDeductVo.getAmount(), accountDeductVo.getOrderNo());

    }

    public void addUserAccountDetail(Long userId, String title, String accountTradeTypeMinus, BigDecimal amount, String orderNo) {
        UserAccountDetail userAccountDetail = new UserAccountDetail();
        userAccountDetail.setUserId(userId);
        userAccountDetail.setAmount(amount);
        userAccountDetail.setTitle(title);
        userAccountDetail.setOrderNo(orderNo);
        userAccountDetail.setTradeType(accountTradeTypeMinus);
        //保存数据
        userAccountDetailMapper.insert(userAccountDetail);
    }

    @Override
    public IPage<UserAccountDetail> findUserRechargePage(Page<UserAccountDetail> userAccountDetailPage, Long userId) {
        //  1201 select * from user_account_detail where user_id = ? and trade_type = 1201
        return userAccountDetailMapper.selectPage(userAccountDetailPage, new LambdaQueryWrapper<UserAccountDetail>().eq(UserAccountDetail::getUserId, userId).eq(UserAccountDetail::getTradeType, SystemConstant.ACCOUNT_TRADE_TYPE_DEPOSIT));
    }

    @Override
    public IPage<UserAccountDetail> findUserConsumePage(Page<UserAccountDetail> userAccountDetailPage, Long userId) {
        //  1204  select * from user_account_detail where user_id = ? and trade_type = 1204
        return userAccountDetailMapper.selectPage(userAccountDetailPage, new LambdaQueryWrapper<UserAccountDetail>().eq(UserAccountDetail::getUserId, userId).eq(UserAccountDetail::getTradeType, SystemConstant.ACCOUNT_TRADE_TYPE_MINUS));
    }
}
